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a 800 kg metal ball hits a wall at 10 ms at an angle of 600 with the plane of the wall it bounce off the wal with the
a 50 omega resistor is connected in series with a 15 mufcapacitor and a 60 hz 120 v sourcea find the current in
a train is traveling away from you at 120 kmh the train blows its400-hz whistle take the speed of sound to be 340 ms
sonar is used to determine the speed of an object a 40-khz signalis sent out and a 42-khz signal is returned assume the
you are designing a pendulum clock escapement you have determined that the pendulum must have a period of 600s what
the concord airplane flies from the united states to europe with amach number of 105 where the air temperature is 50
a 50kg boy runs at 100 ms crashes into a stationary box of equal mass after the collision the two move at 500 ms the
a 545 g block is pushed into a spring k485nm a distance of180cm when the ball is released what is itsvelocitythe
a 10 kg object is moving at 636 ms the object passes 3m over rough surface with a frictional force of 20 n the object
a plank 200 cm thick and 179 cm wide isfirmly attached to the railing of a ship by clamps so that the restof the board
the bullet penetrates into the block and stops due to itsfriction with the block the compound system of the block plus
in a circus performance a monkey on a sled is given an initialspeed of 38 ms up a 25deg incline thecombined mass of the
a tugboat exerts a constant force of 5090n on a ship moving at constant speed through a harbor how muchwork does the
calculate the mass of the deuteron given that the first line in the lyman series of h lies at 82 259098 cm-1 whereas
a sledge loaded with bricks has a total mass of 181 kg and is pulled at constant speed by a rope therope is inclined at
by how much does the chemical potential of benzene change when the pressure exerted on a sample is increased from
what is the maximum number of phases that can be in mutual equilibrium in a four component
bruce stands on a bank beside a pond grasps the end of a 200m long rope attached to a nearby tree and swings out to
a 100-g sample of a mixture of ch4 and c2h4 reacts with oxygen at 25 degrees celcius at 1 atm to produce co2 and h20
determine the concentration of a naoh solution if 2780ml of naoh is required to neutralize 1000 ml of a 100m h2so4
a point source of light is submerged 28 mbelow the surface of a lake and emits rays in all directions on the surface of
some students observe a low-boiling fraction around 40 degrees c during the simple distillation of producing t-amyl
in the preparation of t-amyl chloride from t-amyl alcohol via a unimolecular nucleophilic substitution reaction an
calculate the minimum concentration of mg 2 that must be added to 10 m naf in order to initiate a precipitate of
assume that you pipet twenty milliliters of 0350 m cacl2 into a fifty milliliter volumetric flask and add di water to